Man saved from Tasmania caravan fire

An unconscious man has been dragged to safety from a burning caravan where a gas bottle was found close to flames on the outskirts of Hobart.

Emergency crews were called to a holiday park at Richmond on Friday morning where thick black smoke was coming from the caravan and a nine kilogram gas cylinder connected to a heater was found close to the seat of the fire, police said in a statement.

"Police entered the caravan and located a middle-aged man lying on his bed and managed to drag him clear," Constable Shane Tilley said, adding that the man was taken to hospital in a critical condition and that the fire is not considered suspicious.